Cosmic Cobalt vs Obsidian Green
Cosmic Cobalt (Behr) and Obsidian Green (Little Greene) come from different manufacturers. Cosmic Cobalt reads as blue, while Obsidian Green reads as green — two distinct hue families, not close cousins. The 8-point LRV gap — 10 for Cosmic Cobalt vs 1 for Obsidian Green — means Cosmic Cobalt will open up a space more effectively. Where Cosmic Cobalt leans blue, Obsidian Green reads green — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 48.2 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Cosmic Cobalt vs Obsidian Green in Real Spaces
1 real room side by side. Seeing Cosmic Cobalt and Obsidian Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Cosmic Cobalt reflects noticeably more light off the walls, making the space read more open than Obsidian Green.
Color Details
Cosmic Cobalt vs Obsidian Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Cosmic Cobalt on one side and Obsidian Green on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Cosmic Cobalt comparisons
See how Cosmic Cobalt stacks up against other well-photographed colors across different brands and tones.
